Bump version to 0.4.1
diff --git a/mypy/version.py b/mypy/version.py
index cb2db29..f0ede3d 100644
--- a/mypy/version.py
+++ b/mypy/version.py
@@ -1 +1 @@
-__version__ = '0.4.1-dev'
+__version__ = '0.4.1'